San Francisco: Annual Weather Averages. July is the hottest month in San Francisco with an average temperature of 14Â°C (57Â°F) and the coldest is January at 10Â°C (50Â°F) with the most daily sunshine hours at 14 in July. The wettest month is January with an average of 119mm of rain.
Bile duct obstruction is a blockage in the tubes that carry bile from the liver to the gallbladder and small intestine. In serious cases, the common bile duct can be surgically moved so that it empties further down the small intestine.
The bile duct and pancreatic duct usually join just before entering the duodenum and share a common opening into the small intestine. The pancreas consists of two kinds of tissues 1  : Exocrine -- tissues that make powerful enzymes to digest fats, proteins, and carbohydrates. 2  The enzymes normally are produced and carried in an inactive form to the duodenum, where activation then occurs as needed.